ILLUMINATING NEIGHBORHOODS

Transcription

1 ILLUMINATING NEIGHBORHOODS A City of Edmonton and EPCOR Technologies Pilot Project in LED Implementation David Hoeksema, P.Eng. Manager, Engineering EPCOR Technologies Inc dhoeksema@epcor.com Vlado Cicovski P.Eng. Senior Street Light Engineer City of Edmonton Vlado.cicovski@edmonton.ca

2 Introduction The City of Edmonton operated 98,000 HID streetlights. These consumed nearly 73,800 MWh of energy per year. Annual maintenance costs were approximately $9.4 Million. The City needed to reduce maintenance and energy costs while advancing Edmonton s conservation culture. Reduced light pollution, improved safety and leading with innovation were mandated.

3 A New Technology THE POTENTIAL THE FIRST STEP Life up to 100,000 hours. Reduced consumption up to 70%. Adaptable controls. Flat lens design to reduce light pollution. Improved efficiency in colder temperatures. In 2006 the City of Edmonton completed the conversion of 17,000 traffic lights to LED. The application was highly successful. The City was ready to further test this new technology

4 The Move To Study In 2009 the application of LED for street lighting was still unproven. The Question The Contractor EPCOR Technologies commissioned to evaluate LED street lighting feasibility. Five manufacturers are chosen to pilot their roadway capable LED luminaire in various neighborhoods. The Pilot

5 Methodology Pre-existing pole spacing was maintained. Installed five of each manufacturer s luminaire side by side. Used a 100W HPS Lumec Helios as the reference point. Pilot areas covered a minimum of one residential block. Tested on ease of installation, illumination performance, energy consumption and cost.

6 Pilot Study Lighting Performance Lighting simulations were modeled for efficacy using AGi32 software. Modeled with both standard and manufacturers level of depreciation. The two simulations provided similar results. Top ranked luminaire produced 67% greater luminance.

7 Pilot Study INSTALL Looked at leveling, terminals, overhead wiring access, construction and handling. Of five tested only one proved difficult. ENERGY Bottom ranked consumed 60% more energy. COST Highest payback at 25 years. Lowest payback at 12 years.

8 Pilot Study Specifications were built to remove as much risk as possible from the customer. Requirements included 10 year all inclusive material warranty Industry standard 3rd party testing reports Surge protection requirements of 10kV LLF for ambient nighttime annual temp of 2.6 C Luminaires meeting these specifications were pre-qualified

9 The City of Edmonton s Environmental Strategic Plan The Way We Green It sets out principles, goals, objectives and strategic actions and approaches for Edmonton to live in balance with nature. Some of the goals: Edmonton s communities are full of nature a place where in the course of everyday life, residents experience a strong connection with nature. Edmonton s sources and uses of energy are sustainable. Resource:

10 The City of Edmonton s Environmental Strategic Plan Edmonton s Environmental Management System This policy establishes the ISO 14001, the international standard, as the benchmark for a corporate Environmental Management System (EMS). Standard Environmental Management System practices across the City will address environmental regulatory compliance, pollution prevention and continual improvement. Resource:

11 Neighbourhood Renewal The Neighbourhood Renewal program is part of the Building Great Neighbourhoods initiative which outlines a cost effective, long-term plan to address the needs of Edmonton s neighbourhoods. The program involves the renewal and rebuilding of roads, sidewalks and streetlights in existing neighbourhoods and collector roadways balancing the rebuild need in some neighbourhoods with a preventative maintenance approach in others. Resource:

12 LED Street and Area Lighting Luminaires Deciding factors Luminaire location Pedestrian volumes Night over day collision ratios Luminaire wattage Lumen output over time Luminaire light distribution Walkway location sample Up to date luminaires are replaced with LED s

13 Street lighting in Neighbourhood Renewals Comparison before and after the conversion

14 HPS

15 LED

16 Walkway HPS

17 Walkway LED

18 HPS ---Alley lighting?

19 Walkway LED

20 Local road HPS

21 Local road LED

22 Local road HPS

23 Local road LED

24 Collector HPS

25 Collector LED

26 Collector HPS

27 Collector LED

28 Walkway HPS

29 Walkway LED

30 Arterial LED

31 Implementation Schedule neighborhoods reconstructed, 300 luminaires installed. 23 neighborhoods added due to initial success LED lighting reconstruction in 6 new neighborhoods. By Q3 the first arterial road was retrofitted. TOTAL 31 neighborhood retrofits complete. Approximately 13,000 LED luminaires installed.

32 Schedule Installations were located in neighborhoods throughout the City of Edmonton and chosen based on their priority in the Neighborhood Renewal Program.

33 Design Considerations For Neighborhoods Maintain current lighting levels. Address over and under lit areas. Re-design for high night time collision locations. Identify pole and luminaire style requirements for heritage neighborhoods. For Residents Host open houses for Q&A prior to install. Notify residents of install date. Anticipate some initial discomfort with White light.

34 Implementation KICK-OFF INSTALL Understood as-built legends up front. Surveyed for conformity in pole base size. Surveyed for pole and base condition. Local staging facilities. Pre-wiring in-house. Crews were able to work in winter downtime due to lack of underground construction.

35 Results Reduced Energy Consumption ~ 44% Improved Visibility & Safety Lower Maintenance

36 Lessons Learned PRODUCT Know your asset base - non-standard bases require modifications to new pole flange or install of a new base. Older neighborhoods saw more modifications of pole bases. Ensure new upgrades meet new Canadian Electrical Code. LED color temperature allowed a lower wattage than anticipated still meeting historical lighting levels.

37 Lessons Learned INSTALL Stage locally and group retrofit by neighborhood when possible. Redesign light distribution type for poles close to corner lots. Survey base condition and size in older neighborhoods. Record out of box failures for warranty coverage. Define failure with the manufacturer. Ensure retrofits are logged closely in order to calculate immediate energy savings.

38 Resident Feedback What they liked Happy with color temperature Better target recognition Perception of improved safety Feel visibility is improved The majority of feedback was enthusiastically positive! No immediate failures Improved illumination on pedestrian walkways

39 Resident Feedback What they didn t like Some found the light too White Some pedestrian walkways seemed under lit Disappointed to lose light trespass Only a fraction of feedback received was critical Corner lots had minor glare issues that were corrected

40 Dimming LED Pilot Projects adaptive lighting Residential area Walkway Arterial road

41 LECP Light Efficient Community Policy

42 Questions? References: David Hoeksema, P.Eng. Manager, Engineering EPCOR Technologies Inc Vlado Cicovski P.Eng. Senior Street Light Engineer City of Edmonton